Seal-lock.



PATENTED JUNE 30, 1903.

W. L. SEBRING.

SEAL LOOK.

APPLICATION FILED MAR. 7. 1903,

no KODELI.

yagiuil UNITED STATES Patented June 30, 1903;

PATE T OFF CE.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 732,594, dated June 30,1903.

- Application tiled March 1903. Serial No. 146,729. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM L. ,SEBRING, a citizen of the United States,residing at Colorado Springs, in the county of El Paso and State ofColorado, have invented a new and useful Car Seal-Lock, of which-thefollowing is a specification.

This invention relates to seal-locks of the kind used in fasteningcar-doors and the like.

The object of the invention is to produce a seal-lock adapted for use oncar-doors provided with the ordinary form of hasp-andstaple fasteningwithout any modification of said common form of fastening or permanentlyattaching the lockto the door.

The'invention consists, broadly, in a padlock provided with a seat for aseal, said seat being so arranged that the lock may be closed with theseal in said seat and when the lock is closed the seal will be retainedin its seat and will prevent the unfastening of the look withoutbreaking the seal.

The preferred form of embodiment of the invention is shown in theaccompanying drawings, in which corresponding parts are designated bythe same characters of reference throughout the various views in whichthey appear.

In the drawings, Figure l is a side elevation; Fig. 2, a side elevationwith the side plate forming the seal-seat removed and the shackle beingengaged by a spring-latch to hold it in operative position. Fig. 3 is aview similar to Fig. 2, but with the spring-latch in inoperativeposition and the shackle thrown back to the position for inserting theseal. Fig. 4 is a vertical transverse section through the look as shownin Fig. 1, and Fig. 5 is a horizontal section through the lock shown inFig. 1. a

Referring to the drawings by reference characters, designates the bodyportion of a padlock showing a preferred form ofembodimentofmyinvention. Thebodyportion 20 is provided with a sealseat21, in which the seal is retained by a projection 22 on the key 23 andlugs 24 25 on the pivoted hook 26 when the lockis fastened. The shackle26 is pivotally mounted on a pin 28, which serves,

'with similar pins 29 30 31, to hold together the members forming thebody portion 20 of the padlock. At its free end the shackle 26 istapered,as shown at 32, and provided with a notch 32 to permit theready-engagement of the free end of the hook with the sliding latch 33,having a beveled locking-face 34, which is slidably mounted in suitableway 35 in the body portion 20 of the lock. The latch is normally held inoperative position by means of a spring 36, placed in a recess 37 in 60the latch and having its rearward end in con tact with the end of-theway 35. In order to withdraw the latch from engagement with the notch32, the latch 33 is provided with two downwardly-projecting lugs 38, inthe space between which operates a cam 39 at the upper end of the key23. The key 23 consists of a handle portion 40, with which the lug 22 isintegral,and stem 41, at the end of which is formed a cam 39, justmentioned, and on' which is provided another cam, 43, of larger sizethan the cam 39, which projects outward through openings 45, provided inthe body portion 20 of the look when the key is rotated until the handle40 is disposed transversely of the lock. The stem 41 consists of reducedportions 46 46, between which is an enlargement 47, on which the cam 43is mounted. The enlargement 47 lies between bearing-surfaces 48 and 49,provided in the body portion 20 of the lock, and so prevents slidingof'the key, while permitting free rotation thereof.

The operation of the form of lockdescribed is as follows: The shackle 26having been swung back to the limit of its movement in inoperativeposition, the seal S is introduced into the seal-seat 21 and moveddownward until its lower edge rests on the projection 22 of the key 23.The shackle 26 is then swung into operative position, and the latch 33engages with thenotch 32 to hold it. \Vhen held in operative position,the shackle 26 by means of the lugs 24 25 retains theseal in position inits seat2l, and as long as theseal remains unbroken it is impossible todisengage the latch 33 from the notch 32... When it is desired to openthe lock, the key 23 must be turned until its handle 40 is substantiallyat right angles to the body 20 of the lock, and the cam 39 at the upperend of the stem will then hold the latch 33 outof engagement'with thenotch 32', so that the shackle may be swung into inoperative positionand disen-- gaged from the staple; but as the handle 40 of the key isturned into the position mentioned the cam 43 will be brought intoforcible contact with the frangible seal S and break it before the camhas been turned far enough to force the latch 33 out of engagement withthe notch in the end of the shackle 26.

It is to be understood that I do not wish to limit myself to the exactform, proportions, or mode of assemblage of elements hereinbeforedescribed, and shown in the accompanying drawings, but reserve the rightto make such changes therein as do not depart from the spirit of theinvention and lie within the scope of the claims, which are as follows:

1. A padlock having a seat for a frangible seal provided on the bodyportion thereof, a shackle pivotally mounted on said body portion andadapted to retain the seal in said seat when said shackle is inoperative position, and a key rotatably mounted in said body portion andprovided with a projection adapted to break said seal when the key isturned to release said shackle.

2. A padlock having a body portion provided with a seat for a frangibleseal, a shackle pivotally mounted on said body portion and provided withlugs adapted when said shackle is in operative position to hold the sealin said seat, an automatic latch for locking said shackle in operativeposition, and a key for releasing said latch rotatably mounted in saidlock, said key being provided with a cam adapted to break the seal whenthe key is rotated to release said latch from engagement with saidshackle.

3. A padlock having a body portion provided with a seat open at the topfor a frangible seal, a shackle pivotally mounted on said body portionand adapted to close said seat, an automatic latch for locking saidshackle in operative position, and a member rotatably mounted in saidbody portion and adapted simultaneously to release said latch and breaksaid seal.

4. A padlock having a body portion provided with a seat open at the topfor a frangible seal, ashackle pivotally mounted on said body portionand having a projection adapted to overlie said seal-seat, means forautomatically locking said shackle in operative position, and a memberrotatably mounted in said body portion and adapted to release saidlocking means and to break said seal.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

VVILLIAH L. SEEKING.

\Vitnesses:

OLIVE 0. BLACK, JAMES R. SNYDER.

